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Firewall Heat Insulation: Difference between revisions
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* [https://www.amazon.com/dp/B001CGWR16 3M Fire Barrier Silicon at Amazon] | * [https://www.amazon.com/dp/B001CGWR16 3M Fire Barrier Silicon at Amazon] | ||
* [https://www.aircraftspruce.com/catalog/eppages/heaterbypass3.php Stainless Steel Heater Bypass Valve at Spruce]<br>''During engine fire, it prevents melting of aluminum flap that Vans stock RV-10 valve has as of 2/2022.<br>Has air dam that prevents valve from being blown open slightly by airflow''. | * [https://www.aircraftspruce.com/catalog/eppages/heaterbypass3.php Stainless Steel Heater Bypass Valve at Spruce]<br>''During engine fire, it prevents melting of aluminum flap that Vans stock RV-10 valve has as of 2/2022.<br>Has air dam that prevents valve from being blown open slightly by airflow''. | ||
==== Discussions ==== | |||
* [https://www.facebook.com/groups/vansrv10/posts/3500038313450576 FB Thread] | |||
==== Notes on the "hot tunnel" issue ==== | ==== Notes on the "hot tunnel" issue ==== | ||
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* It is caused mainly by hot air blowing at the valve even when the valves are closed (bypass mode). Heat-shielding the firewall area around it addresses that. Also putting heat shield material between the valve and the firewall. | * It is caused mainly by hot air blowing at the valve even when the valves are closed (bypass mode). Heat-shielding the firewall area around it addresses that. Also putting heat shield material between the valve and the firewall. | ||
* At some point, Vetterman, who makes the RV-10 stock exhaust, addressed the issue, and reduced the BTU output of the heating elements. Therefore less-hot air blows against the closed valves and the heating capacity is still plenty for the RV-10 when the valves are open. There are builders with everything stock and no "hot tunnel" issue. When exactly that change was made is TBD, some years before 2022 at least. | * At some point, Vetterman, who makes the RV-10 stock exhaust, addressed the issue, and reduced the BTU output of the heating elements. Therefore less-hot air blows against the closed valves and the heating capacity is still plenty for the RV-10 when the valves are open. There are builders with everything stock and no "hot tunnel" issue. When exactly that change was made is TBD, some years before 2022 at least. | ||
[[Category:Optional]] | |||